Multi-slice Spiral CT Diagnosis of Thoracolumbar Burst Fracture
- VernacularTitle:多层螺旋CT对胸腰椎爆裂骨折的诊断
- Author:
Zhiping WANG
;
Haibing ZHONG
- Publication Type:Journal Article
- Keywords:
spine;
burst fracture;
three dimensional reconstruction;
tomography,X-ray computed
- From:
Journal of Practical Radiology
2000;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate multi-slice spiral CT (MSCT) various postprocessing technique in diagnosing thoracolumbar burst fracture.Methods MSCT scaning was performed in 36 patients with 42 thoracolumbar vertebrae burst fracture altogether. The raw data of allthese cases were processed respectively by four kinds of image reconstruction, including multiple planar reconstruction (MPR), maximumintensity projection (MIP), surface shaded display (SSD) and virtual endoscope (VE), and the CT findings were compared with pathological results.Results The diagnosis was based on a combination of MPR with conventional axial scans which could display two dimensional images well. MIP could only show the fracture of lamina of vertebral arch and was superior to other techniques in displaying the whole figure. On the basis of imaging characteristics the fracture of lamina of vertebral arch was divided into 5 types:vertical, transversal, “7”-graphemic or reverse“7”-graphemic ,“S” and displaced. SSD fully displayed three dimensional surface of the fractured vertebral body as well as the severity of compressed vertebrae. VE could show displaced vertebrae and also the severity of narrow spinal canal.Conclusion Based on two dimensional images and combined with three dimensional images, MSCT can comprehensively show the thoracolumbar burst fracture. Several methods should be applied jointly.
